题目内容
解比例
| x:
|
(1)
=
19x=57×24
19x=1368
19x÷19=1368÷19
x=72;
(2)x:
=
:
x=
×
x=
x÷
=
÷
x=
.
| 57 |
| x |
| 19 |
| 24 |
19x=57×24
19x=1368
19x÷19=1368÷19
x=72;
(2)x:
| 1 |
| 7 |
| 1 |
| 2 |
| 3 |
| 14 |
| 3 |
| 14 |
| 1 |
| 7 |
| 1 |
| 2 |
| 3 |
| 14 |
| 1 |
| 14 |
| 3 |
| 14 |
| 3 |
| 14 |
| 1 |
| 14 |
| 3 |
| 14 |
x=
| 1 |
| 3 |
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